All but the most deluded now agree that Lee Harvey Oswald didn't fire the shots that killed JFK.

There is overwhelming evidence that Sirhan Sirhan didn't fire the shots that killed RFK.

And anyone who cared to look into it is pretty sure that John Hinckley didn't fire -- no, couldn't have fired -- the shot that hit Reagan.

Also, Nixon's takedown, while Democrats took part, was engineered from the inside. Nixon was a lot of things, but he was probably slightly to the left of Bill Clinton:

Nixon started the EPA, extended the Clean Air Act, opened relations with China, set a goal for independence from foreign oil, introduced SSI for the disabled, launched the Minority Business Development Agency, signed the Occupational Safety and Health Act, and implemented the first federally-mandated affirmative action program.

It was absolutely essential to the fascists that he be stopped. When he was brought down, Gerald "Zero" Ford was installed and while he played with his putz in the oval office, the fascists flooded into government -- Cheney, Rumsfeld & Co. They have never left.

Corporate CEOs, along with Prescott Bush tried to set up a fascist dictatorship in 1934. They were discovered, and the plot was stopped. However, they weren't hanged, as they should have been. They went underground, but resurfaced with the mid-60s massacre of JFK, RFK and MLK. Since then, we've seen a slow-motion coup that is almost complete.

Some of those things are true-ish, a lot of them are false. But most importantly, almost none of those events have anything to do with one another.

Nixon was actually impeached for setting up the EPA. Because when congress authorized it, he used executive discretion as an extortion racket. A simple "Noone actually knows what the safe levels of any of these chemicals are, so the executive officers I appoint can choose any numbers they want. If I don't see a big pile of money in CRP by Monday the numbers they happen to choose will shut your factory down." got him a lot of donations and a lot of people hopping pissed. Most of the articles of impeachment are about that kind of behavior, not the Watergate stuff.

Nixon's impeachment was not related to the assassination of RFK, nor was the failed (and pathetic) attempt to kill Reagan.